沈阳农业大学学报2016，Vol.47Issue(4)：392-398,7.DOI:10.3969/j.issn.1000-1700.2016.04.002
钙素对β-氨基丁酸诱导番茄抗灰霉病和防御酶活性的调控作用
Regulation of Calcium on Resistance to Botrytis cinerea and Activities of Defensive Enzymes Induced by β-aminobutyric Acid in Tomato Leaves
摘要
Abstract
In order to reveal the relationship between regulation of calcium on induced resistance by β-aminobutyric acid (BABA) and defense enzymes activities in tomato, changes of resistance and defense enzymes activities induced by BABA were investigated systematically after sprayed calcium or its antagonist on the plants. Results showed that: Resistance to gray mould was improved significantly after painted tomato leaves with BABA. Thus, disease index between treated and un-treated leaves of induced group was lower than that of control group 35.4% and 23.9% respectively. Moreover, induced resistance was farther enhanced by exogenous Ca2+ and disease index of BABA+Ca treatment group was lower than that of control group 53.6% and 34.4% in treated and un-treated leaves. But it was restrained badly by Ca2+ chelator as EGTA or the plasmalemma Ca2+ channel blocker as LaCl3. Activities of defensive enzymes such as PAL, PPO, POD and CAT in treated-leave and untreated-leave also rose after treated the plant with BABA. This response was promoted by exterior calcium while suppressed by the inhibitor of Ca2+such as EGTA and La3+ in a general way. However, activities of SOD induced by BABA were not regulated by calcium or inhibitor of Ca2+. Consequently, modulating of calcium on resistance to tomato gray mould induced by BABA may has relations with activities of some important defensive enzymes such as PAL, PPO, POD and CAT in tomato leaves.关键词
番茄/灰霉病/钙/β-氨基丁酸/防御酶Key words
tomato/Botrytis cinerea/calcium/β-aminobutyric acid/defensive enzymes分类
农业科技引用本文复制引用
余朝阁,周娣,吕亭辉,李天来..钙素对β-氨基丁酸诱导番茄抗灰霉病和防御酶活性的调控作用[J].沈阳农业大学学报,2016,47(4):392-398,7.基金项目
“十三五”国家重点研发计划项目(2016YFD0201004)；沈阳工学院重大课题支持基金项目(ZD201501) （2016YFD0201004）
